Patent · US Expired

Metal component and discharge lamp

US6384533B1 · kind B1 · utility

3Cited by

4References

4Claims

0Family size

Assignee

W.C. Heraeus GmbH & Co. KG · DE

Inventors

Thomas Giesel · Niederrodenbach, DE
David Francis Lupton · Gelnhausen, DE
Frank Krüger · Könnern, DE
Friedhold Scholz · Rodenbach, DE

Key dates

Filing date	Feb 17, 2000
Grant date	May 7, 2002
Priority date	—
Expiry date	Feb 17, 2020

Classification

Technology area (CPC H)Electricity
CPC primaryH01J61/36
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to a metal component for discharge lamps, having a support of niobium or tantalum or of alloys based on niobium and/or tantalum, as well as a discharge lamp. The present invention is addressed to the problem of increasing the resistance to oxidation and corrosion of metal components having a support of niobium or tantalum or of alloys based on niobium and/or tantalum which are disposed in or on discharge lamps. The problem is solved according to the invention in that the support has a coating of one or more single layers which is formed of at least one noble metal and/or from a noble metal alloy.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.